US20130171854A1 - Waterproof Connector and Waterproof Connector Mounting Structure and Mounting Method - Google Patents
Waterproof Connector and Waterproof Connector Mounting Structure and Mounting Method Download PDFInfo
- Publication number
- US20130171854A1 US20130171854A1 US13/683,441 US201213683441A US2013171854A1 US 20130171854 A1 US20130171854 A1 US 20130171854A1 US 201213683441 A US201213683441 A US 201213683441A US 2013171854 A1 US2013171854 A1 US 2013171854A1
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- United States
- Prior art keywords
- connector
- sealing member
- housing
- waterproof
- case
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
- H01R13/5202—Sealing means between parts of housing or between housing part and a wall, e.g. sealing rings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
- H01R13/5219—Sealing means between coupling parts, e.g. interfacial seal
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/73—Means for mounting coupling parts to apparatus or structures, e.g. to a wall
- H01R13/74—Means for mounting coupling parts in openings of a panel
Definitions
- the present invention relates to a waterproof connector provided at a place that may be exposed to water.
- a waterproof structure is adopted in an electrical connector to be used in an electronic device provided at a place that may be exposed to water, such as an engine room.
- water is prevented from entering by using a ring-shaped sealing member to form a sealing part.
- a connector is divided into a board connector to be assembled to a circuit board and an outer housing to be assembled to a case.
- the outer housing has a receiving part in which a connector housing for holding a contact of the board connector is accommodated.
- the case, the housings, and the board connector are assembled so that a predetermined clearance is provided between the connector housing and the receiving part of the outer housing and between the outer housing and the case. For this reason, with an assembling tolerance between the board connector and the housing and an assembling tolerance between the housing and the case, an assembling tolerance between the case and the connector can be absorbed.
- a rubber-made grommet is fixed to a case cover of an electronic device to ensure a waterproof property between an electrical connector (a board connector) mounted on a circuit board on an electronic device side and the case cover.
- the present invention has been made in view of the above-described problems, and has an object of providing a waterproof connector capable of providing an appropriate intimate contact state to a sealing member not requiring another member, without impairing easy assembly.
- a waterproof connector includes a housing that holds at least one contact for establishing an electrical connection with a mating connector; and a ring-shaped sealing member mounted on the housing, the sealing member having a front face and a rear face; at least a first and a second guide portion provided adjacent to each of both faces of the sealing member, the guide portions guiding the housing when being mounted to a case.
- FIG. 1 is a perspective view of a connector assembly in an embodiment
- FIGS. 2A , 2 B, and 2 C each show the connector assembly in the present embodiment, FIG. 2A being a plan view, FIG. 2B being a sectional view of FIG. 2A taken along line 2 b - 2 b , and FIG. 2C being a partially enlarged view of FIG. 2B ;
- FIGS. 3A and 3B each show a male connector in the present embodiment, FIG. 3A being a perspective view and FIG. 3B being a sectional view of FIG. 3A taken along line 3 a - 3 a;
- FIGS. 4A and 4B each are a plan view of the male connector in the present embodiment
- FIGS. 5A and 5B each show a procedure of assembling the male connector in the present embodiment on an electronic device, FIG. 5A showing the state in which the male connector is assembled on a circuit board and FIG. 5B showing the state in which a housing cover starts to be inserted;
- FIGS. 6A and 6B each show the procedure of assembling the male connector in the present embodiment on the electronic device, FIG. 6A showing the state in which the housing cover reaches a sealing member and FIG. 5B showing the state in which the housing cover has been deeply pressed to the bottom.
- a connector assembly 10 is, as shown in FIG. 1 and FIGS. 2A to 2C , a waterproof connector for use as being assembled onto an electronic device 1 .
- the electronic device 1 has a case 3 whose outer periphery is provided with a circuit board 2 , and further includes a case cover 4 made of metal covering an outer periphery of the circuit board 2 .
- the connector assembly 10 is configured with a male connector 20 and a female connector 40 mated with each other, the male connector 20 to be electrically connected to the circuit board 2 and the mating female connector 40 serving as a counterpart connector with respect to the male connector 20 .
- the case cover 4 has formed therein an essentially rectangular connector placement window 5 where the male connector 20 is to be placed.
- the male connector 20 penetrates through this connector placement window 5 to be partially accommodated in the case cover 4 for connection with the circuit board 2 placed in the case cover 4 and to be partially exposed to the outside of the case cover 4 .
- the case cover 4 includes a flange-shaped sealing wall 6 standing from an outer periphery of the case cover 4 along the connector placement window 5 . Note that various electronic elements and wiring patterns not shown are mounted on the circuit board 2 .
- sealing member 35 for instance a resilient washer or gasket which may be fabricated from elastically deformable rubber, is shown in an undeformed state for ease of understanding its shape.
- sealing member 46 which will be described further below.
- the male connector 20 which is the waterproof connector of the present invention, includes a male housing 21 and a plurality of male contacts 22 accommodated in the male housing 21 .
- the waterproof connector may of course also be a female connector, the mating connector then being a male connector.
- a side to be connected to the counterpart female connector 40 is defined as front and a side opposite thereto and from which a wire not shown is drawn is defined as rear.
- the same applies to the female connector 40 a side to be connected to the counterpart male connector 20 being defined as front.
- the male housing 21 is an injection-molded resin-made insulating product, and includes a base 23 , two receiving parts 24 provided on a front side of the base 23 , and three fixing seats 38 positioned on a rear end side of the receiving parts 24 to fix the male connector 20 to the case 3 .
- the base 23 has an oval outer shape, and is formed as being extended to the outside of the receiving parts 24 , which will be described further below, in a diameter direction.
- the base 23 includes a seal placing part 30 , a seal supporting part 31 provided on a rear side of the seal placing part 30 , and a holder placing part 33 provided on a front side of the seal placing part 30 , all parts along a circumferential direction.
- the holder placing part 33 has formed therein a holding groove 33 a along a major axial direction of the base 23 to hold a tail end side of a seal holder 36 .
- the seal placing part 30 has a flat outer peripheral surface over the entire length in a circumferential direction, with its periphery having the sealing member 35 (e.g. fabricated from rubber) fitting in.
- the sealing member 35 e.g. fabricated from rubber
- the seal supporting part 31 is formed with its diameter largely extended to the outside of the seal placing part 30 . Therefore, when the sealing member 35 fits in the seal placing part 30 , the seal supporting part 31 supports the sealing member 35 from the rear side to prevent misalignment of the sealing member 35 to the rear side.
- the seal supporting part 31 has an outer peripheral surface on which six guide projections 32 (first guide portions) are formed so as to be spaced apart from each other in a circumferential direction.
- the outer peripheral surface of the seal supporting part 31 is formed as a flat surface over the circumferential direction, except these guide projections 32 .
- Each of both ends of the seal supporting part 31 in a major axial direction (an x direction in FIG. 3A ) is provided with one guide projection 32 .
- These guide projections 32 are referred to as guide projections 32 x .
- the other four projections 32 are each provided to a boundary between a large curvature portion and a small curvature portion of the seal supporting part 31 .
- These guide projections 32 are referred to as guide projections 32 y.
- the guide projections 32 x engage with an inner peripheral surface of the sealing wall 6 when the male connector 20 is inserted into the connector placement window 5 of the case cover 4 , thereby regulating relative positions of the male connector 20 and the case cover 4 (the sealing wall 6 ) in a major axial direction.
- the guide projections 32 y engage with the inner peripheral surface of the sealing wall 6 , thereby regulating relative positions of the male connector 20 and the case cover 4 (the sealing wall 6 ) in a minor axial direction (a y direction in FIG. 3A ).
- the seal holder 36 is provided on a front side of the seal supporting part 31 (the sealing member 35 ) of the base 23 .
- the seal holder 36 supports the sealing member 35 from the front side to prevent misalignment of the sealing member 35 to the front side.
- the seal holder 36 is fabricated separately from the male connector 20 , and is provided at a predetermined position after the sealing member 35 is placed on the periphery of the seal supporting part 31 .
- the seal holder 36 has an outer peripheral surface on which six guide projections 37 (second guide portions) are formed so as to be spaced apart from each other in a circumferential direction.
- the guide projections 37 of the seal holder 36 are also provided at positions similar to those of the guide projections 32 of the seal supporting part 31 . That is, each of both ends of the seal holder 36 in a major axial direction is provided with one guide projection 37 .
- These guide projections 37 are referred to as guide projections 37 x .
- the other four projections 37 are each provided to a boundary between a large curvature portion and a small curvature portion of the seal supporting part 31 .
- These guide projections are referred to as guide projections 37 y.
- the guide projections 37 x engage with an inner peripheral surface of the sealing wall 6 when the male connector 20 is inserted into the connector placement window 5 of the case cover 4 , thereby regulating relative positions of the male connector 20 and the case cover 4 (the sealing wall 6 ) in a major axial direction.
- the guide projections 37 y engage with the inner peripheral surface of the sealing wall 6 , thereby regulating relative positions of the male connector 20 and the case cover 4 (the sealing wall 6 ) in a minor axial direction.
- the guide projections 37 are provided at the same positions as those of the corresponding guide projections 32 ( 32 x and 32 y ) in the circumferential direction.
- the guide projections 32 and the guide projections 37 provided on both sides in a front-and-rear direction (a vertical direction in the drawings) across the sealing member 35 so as to be spaced apart from each other, relative positions of the male connector 20 and the case cover 4 (the sealing wall 6 ) in the front-and-rear direction (a z direction in FIG. 3A ) are regulated when the male connector 20 is inserted into the connector placement window 5 of the case cover 4 .
- each receiving part 24 includes a holding wall 25 having holding holes 26 penetrating through the front and rear formed therein and a hood 27 standing from a circumferential edge of the holding wall 25 toward front.
- the contacts 22 are held by the holding wall 25 by being pressed into the holding holes 26 , and each of the contacts 22 has a side on a front side of the holding wall 25 accommodated in the hood 27 and a side on a rear side of the holding wall 25 accommodated inside the case cover 4 .
- the holding wall 25 has a projecting part 28 projecting rearward.
- a screw hole 29 opening rearward is formed.
- the male connector 20 is fixed via each fixing seat 38 to the case 3 with a bolt (omitted in the drawings), and is assembled to the electronic device 1 with a bolt B penetrating through the circuit board 2 being screwed into the screw hole 29 of the projecting part 28 .
- the tip of the sealing member 35 of the male connector 20 is brought into intimate contact with the inner peripheral surface (a sealing surface) of the sealing wall 6 of the case cover 4 to seal a space between the case cover 4 and the male connector 20 , thereby ensuring a waterproof property inside the case cover 4 .
- a dimension (the height) of the sealing member 35 in the front-and-rear direction is set to be smaller than the height of the sealing wall 6 . This is to more reliably accommodate the sealing member 35 between the base 23 of the male connector 20 and the sealing wall 6 even if a misalignment of the case cover 4 in the front-and-rear (fitting) direction occurs.
- this is merely a preferable embodiment of the present invention.
- the female connector 40 to be mated with the male connector 20 includes, as shown in FIG. 1 and FIGS. 2A to 2C , a female housing 41 corresponding to the receiving parts 24 of the male connector 20 , female contacts 42 held by the female housing 41 to be electrically connected to the contacts 22 of the male connector 20 , a retainer 43 for cushioning a force at the time of insertion and removal of the connector, and lever engaging parts 44 provided on the periphery of the female housing 41 to prevent disconnection between the male connector 20 and the female connector 40 mated with each other.
- the female housing 41 has contact cavities 45 into which the contacts 22 of the male connector 20 are inserted. Into the contact cavities 45 , electric wires not shown connected to the contacts 42 are inserted.
- a holding groove 47 is provided to an entire outer periphery of the female housing 41 on a rear end. In this holding groove 47 , the ring-shaped sealing member 46 is placed.
- the sealing member 46 is brought into intimate contact with an inner peripheral surface of the hood 27 to seal a space between the male connector 20 and the female connector 40 .
- water can be prevented from entering from the space between the male connector 20 and the female connector 40 .
- Each of the lever engaging parts 44 is rotated with a support shaft 48 formed on the outer periphery of the female housing 41 as an axis, and includes an engaging projection 49 engaging with an engaging projection 39 formed on an outer periphery of the hood 27 . According to this configuration, the male connector 20 and the female connector 40 are prevented from being removed from each other.
- the female housing 41 includes a skirt 50 .
- the skirt 50 is provided on a front end side of the female housing 41 , and has an accommodation space 51 (refer to FIGS. 2B and 2C ) therein for accommodating a front end side of the male connector 20 .
- the base 23 of the male connector 20 is accommodated in the accommodation space 51 of the skirt 50 . That is, the skirt 50 covers the seal holder 36 , the sealing member 35 (the seal placing part 30 ), and the rubber supporting part 31 .
- the skirt 50 also covers the sealing wall 6 of the case cover 4 configuring the sealing part together with the sealing member 35 .
- the accommodation space 51 of the skirt 50 has a width set to be larger than the outer shape of the sealing wall 6 .
- the possibility of entrance of water is increased.
- this space is too small, the skirt 50 interferes with the sealing wall 6 due to the dimensional tolerance to possibly cause a trouble in mating the female connector 40 with the male connector 20 .
- the dimension of the width of the skirt 50 can be set.
- a dimension (a height) of the skirt 50 in a front-and-rear direction is preferably set so that a space is formed between a front end of the female connector 40 and the case cover 4 when the female connector 40 is mated with the male connector 20 . This is to secure complete mating between the female connector 40 and the male connector 20 by avoiding interference of the front end of the fitting skirt 50 with the case cover 4 .
- the height of this space that is, the height of the skirt 50 , should be determined in consideration of reduction in the possibility of entrance of water and misalignment of the connector.
- the male connector 20 is assembled to the case 3 and the circuit board 2 .
- This assembling is performed as described above by fixing the male connector 20 to the case 3 with bolts (not shown) via the fixing seats 38 and screwing the bolt B penetrating through the circuit board 2 into the screw hole 29 of the projecting part 28 .
- the case cover 4 is pressed toward the circuit board 2 to cause the male connector 20 to be inserted into the connector placement window 5 .
- the first guide projections 32 and the second guide projections 37 help ensure an appropriate intimate contact state of the sealing member 35 of the male connector 20 between these guide projections and the sealing wall 6 of the case cover 4 .
- the guide projections 32 interfere with the inner periphery surface of the sealing wall 6 .
- the case cover 4 is not misaligned with respect to the male connector 20 as the guide projections 32 go beyond interference with the sealing wall 6 .
- the guide projections 37 ( 32 ) engage with the inner peripheral surface of the sealing wall 6 , thereby allowing the male connector 20 to be inserted into the connector placement window 5 while regulating a further tilt of the case cover 4 . Therefore, as shown in FIG.
- the connector assembly 10 of the present embodiment can provide a high waterproof property between the case cover 4 and the male connector 20 .
- the case cover 4 is pressed to the bottom as the case cover 4 keeps being significantly tilted in the planar direction and the front-and-rear direction. Then, a partial contact occurs in which a portion with a too large intimate contact width and a portion with a too small intimate contact width are present in a mixed manner in the sealing member 35 .
- the portion with a too small intimate contact width has an insufficient waterproof property. In the portion with a too large intimate contact width, if the sealing member 35 and the sealing wall 6 too strongly interfere with each other, the sealing member 35 can be twisted or removed from the seal supporting part 31 . This also does harm to the waterproof property.
- the female connector 40 is caused to be mated with the male connector 20 .
- the male connector 20 is covered with the female connector 40 .
- a portion sealed with the sealing member 35 and the sealing wall 6 is completely covered inside the skirt 50 of the female connector 40 , thereby preventing water from directly coming from the outside to the sealed portion.
- the factor responsible for damage to the waterproof property is not directly provided from the outside to the sealing member 35 , thereby further improving the waterproof property of the sealed portion.
- the provision of the guide projections 32 and 37 at six positions at the periphery of the seal support part 31 and the seal holder 36 , respectively, is suitable for guiding so that the center of the case cover 4 and the center of the male connector 20 match each other.
- the present invention allows the guide projections 32 and 37 to be place in a different arrangement. Even in this different arrangement, it should be assumed that the intimate contact width of the sealing member 35 be uniform in the planar direction and the front-and-rear direction.
- a length (a dimension in the planar direction) of each of the guide projections 32 and 37 is not restrictive in the present invention. However, if the length is extremely too long, it may be difficult to ensure accuracy of a projection height over a length direction, and therefore the length is required to be set in consideration of this point.
- the sealing member 35 includes two ribs 35 a . This is because, even when a trouble such as a twist occurs in one rib 35 a , the waterproof property can be ensured if the other rib 35 a remains intact. Therefore, the sealing member 35 including a plurality of the ribs 35 a is preferable.
- a sealing member for use in the present invention is not restricted to the one including ribs.
- a rib sealing member or a grommet sealing member can be used.
- the waterproof connector of the present invention includes the guide portions on both sides across the sealing member, the guide portion guiding the housing to a position relative to the connector placement window.
- an appropriate intimate contact state can be provided to the sealing member without performing an extra operation. Therefore, the waterproof property in the sealing part can be stably ensured.
- the guide portions can include a first guide portion provided on one of the sides across the sealing member and a second guide portion provided on another one of the sides across the sealing member.
- both of the first guide portion and the second guide portion can be formed integrally with the housing.
- the first guide portion can be formed integrally with the housing, and the second guide portion can be formed on a ring-shaped seal fixing member fixing the sealing member to the housing.
- a dimension of the sealing member in a mating direction of mating with the counterpart connector is preferably smaller than a dimension of the sealing wall in the mating direction. Even if the case cover is placed in the mating direction with misalignment, the sealing member can be brought into intimate contact with the sealing wall.
- the sealing member preferably includes a plurality of ribs projecting toward the sealing wall. This is because, even when a trouble such as a twist occurs in one rib, the waterproof property can be ensured if another rib remains intact.
- the plurality of guide portions are preferably placed so as to be spaced apart from each other in a circumferential direction of the housing.
- the housing can be guided to a more appropriate position of the seating wall.
- the counterpart connector preferably includes a skirt, and when the counterpart connector is connected to the waterproof connector, the sealing part is covered with the skirt.
- the present invention provides a mounting structure of a waterproof connector to be connected to a circuit board placed in a case and assembled to the case, the waterproof connector being any of the waterproof connectors described above and the case cover configuring a part of the case.
- an appropriate intimate contact state can be provided to the sealing member, thereby allowing an excellent waterproof property to be ensured inside the case.
- an embodiment of the present invention may provide a waterproof connector mounting method including the steps of connecting any of the waterproof connector described above to the circuit board and mounting the case cover including the sealing wall rising from the periphery of the connector placement window on the waterproof connector connected to the circuit board so that the waterproof connector is placed on the connector placement window.
- the waterproof connector mounting method of the present invention only by assembling the case cover via the connector placement window to the case having the waterproof connector and the circuit board being fixed therein, an appropriate intimate contact state can be obtained in the sealing member, and therefore the mounting operation is easy.
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- Connector Housings Or Holding Contact Members (AREA)
Abstract
A waterproof connector is provided for ensuring an appropriate intimate contact state to a sealing member without impairing easy assembly. The connector includes a housing that holds at least one contact for establishing an electrical connection with a mating connector; and a ring-shaped sealing member mounted on the housing, the sealing member having a front face and a rear face; at least a first and a second guide portion provided adjacent to each of both faces of the sealing member, the guide portions guiding the housing when being mounted to a case.
Description
- This application claims priority under 35 U.S.C. §119 to Japanese Patent Application No. 2011-258530, filed Nov. 28, 2011.
- The present invention relates to a waterproof connector provided at a place that may be exposed to water.
- Conventionally, a waterproof structure is adopted in an electrical connector to be used in an electronic device provided at a place that may be exposed to water, such as an engine room. In this waterproof connector, water is prevented from entering by using a ring-shaped sealing member to form a sealing part.
- An example is disclosed in Japanese Patent Application Laid-Open No. 2009-9845 in which a connector is divided into a board connector to be assembled to a circuit board and an outer housing to be assembled to a case. The outer housing has a receiving part in which a connector housing for holding a contact of the board connector is accommodated. The case, the housings, and the board connector are assembled so that a predetermined clearance is provided between the connector housing and the receiving part of the outer housing and between the outer housing and the case. For this reason, with an assembling tolerance between the board connector and the housing and an assembling tolerance between the housing and the case, an assembling tolerance between the case and the connector can be absorbed.
- Also, in Japanese Patent Application Laid-Open No. 2007-128715, a rubber-made grommet is fixed to a case cover of an electronic device to ensure a waterproof property between an electrical connector (a board connector) mounted on a circuit board on an electronic device side and the case cover.
- In a waterproof connector in which a sealing member is elastically deformed to be brought into intimate contact with a sealing surface on the counterpart side, if a portion of the sealing member is compressed to a too small degree at any position on the circular sealing member, the waterproof property may not be ensured. Conversely, if a portion is deformed too strongly, the sealing member is twisted to become disengaged from a fixed position, and therefore the waterproof property may not be ensured either in this situation. Therefore, what is important for the waterproof connector to ensure the waterproof property is that the sealing member is deformed with a necessary amount to be brought into intimate contact with the sealing surface on the counterpart side, that is, to acquire an appropriate intimate contact state. However, it is not easy to assemble the waterproof connector and the case without misalignment therebetween. Moreover, the patent publications cited above do not suggest that an appropriate intimate contact state is provided to the sealing member.
- Therefore, the present invention has been made in view of the above-described problems, and has an object of providing a waterproof connector capable of providing an appropriate intimate contact state to a sealing member not requiring another member, without impairing easy assembly.
- A waterproof connector includes a housing that holds at least one contact for establishing an electrical connection with a mating connector; and a ring-shaped sealing member mounted on the housing, the sealing member having a front face and a rear face; at least a first and a second guide portion provided adjacent to each of both faces of the sealing member, the guide portions guiding the housing when being mounted to a case.
- The objects, features and advantages of the invention will become more apparent by describing in detail embodiments thereof with reference to the accompanying drawings, in which:
-
FIG. 1 is a perspective view of a connector assembly in an embodiment; -
FIGS. 2A , 2B, and 2C each show the connector assembly in the present embodiment,FIG. 2A being a plan view,FIG. 2B being a sectional view ofFIG. 2A taken alongline 2 b-2 b, andFIG. 2C being a partially enlarged view ofFIG. 2B ; -
FIGS. 3A and 3B each show a male connector in the present embodiment,FIG. 3A being a perspective view andFIG. 3B being a sectional view ofFIG. 3A taken alongline 3 a-3 a; -
FIGS. 4A and 4B each are a plan view of the male connector in the present embodiment; -
FIGS. 5A and 5B each show a procedure of assembling the male connector in the present embodiment on an electronic device,FIG. 5A showing the state in which the male connector is assembled on a circuit board andFIG. 5B showing the state in which a housing cover starts to be inserted; and -
FIGS. 6A and 6B each show the procedure of assembling the male connector in the present embodiment on the electronic device,FIG. 6A showing the state in which the housing cover reaches a sealing member andFIG. 5B showing the state in which the housing cover has been deeply pressed to the bottom. - The present invention is described in detail below based on embodiments shown in the accompanying drawings.
- A
connector assembly 10 according to an embodiment is, as shown inFIG. 1 andFIGS. 2A to 2C , a waterproof connector for use as being assembled onto anelectronic device 1. Theelectronic device 1 has acase 3 whose outer periphery is provided with acircuit board 2, and further includes acase cover 4 made of metal covering an outer periphery of thecircuit board 2. Theconnector assembly 10 is configured with amale connector 20 and afemale connector 40 mated with each other, themale connector 20 to be electrically connected to thecircuit board 2 and the matingfemale connector 40 serving as a counterpart connector with respect to themale connector 20. Thecase cover 4 has formed therein an essentially rectangularconnector placement window 5 where themale connector 20 is to be placed. Themale connector 20 penetrates through thisconnector placement window 5 to be partially accommodated in thecase cover 4 for connection with thecircuit board 2 placed in thecase cover 4 and to be partially exposed to the outside of thecase cover 4. Thecase cover 4 includes a flange-shaped sealing wall 6 standing from an outer periphery of thecase cover 4 along theconnector placement window 5. Note that various electronic elements and wiring patterns not shown are mounted on thecircuit board 2. - Note that in each drawing, a
sealing member 35, for instance a resilient washer or gasket which may be fabricated from elastically deformable rubber, is shown in an undeformed state for ease of understanding its shape. The same applies to a sealingmember 46, which will be described further below. - As shown in
FIGS. 3A , 3B, 4A and 4B, themale connector 20, which is the waterproof connector of the present invention, includes amale housing 21 and a plurality ofmale contacts 22 accommodated in themale housing 21. However, the waterproof connector may of course also be a female connector, the mating connector then being a male connector. Note that in themale connector 20, a side to be connected to the counterpartfemale connector 40 is defined as front and a side opposite thereto and from which a wire not shown is drawn is defined as rear. The same applies to thefemale connector 40, a side to be connected to the counterpartmale connector 20 being defined as front. - The
male housing 21 is an injection-molded resin-made insulating product, and includes abase 23, two receivingparts 24 provided on a front side of thebase 23, and threefixing seats 38 positioned on a rear end side of the receivingparts 24 to fix themale connector 20 to thecase 3. - As shown in
FIGS. 3A and 3B , thebase 23 has an oval outer shape, and is formed as being extended to the outside of thereceiving parts 24, which will be described further below, in a diameter direction. - The
base 23 includes aseal placing part 30, aseal supporting part 31 provided on a rear side of theseal placing part 30, and aholder placing part 33 provided on a front side of theseal placing part 30, all parts along a circumferential direction. Note that, as shown inFIG. 3B , theholder placing part 33 has formed therein a holdinggroove 33 a along a major axial direction of the base 23 to hold a tail end side of aseal holder 36. - The
seal placing part 30 has a flat outer peripheral surface over the entire length in a circumferential direction, with its periphery having the sealing member 35 (e.g. fabricated from rubber) fitting in. - The
seal supporting part 31 is formed with its diameter largely extended to the outside of theseal placing part 30. Therefore, when the sealingmember 35 fits in theseal placing part 30, theseal supporting part 31 supports the sealingmember 35 from the rear side to prevent misalignment of the sealingmember 35 to the rear side. Theseal supporting part 31 has an outer peripheral surface on which six guide projections 32 (first guide portions) are formed so as to be spaced apart from each other in a circumferential direction. The outer peripheral surface of theseal supporting part 31 is formed as a flat surface over the circumferential direction, except theseguide projections 32. - Each of both ends of the
seal supporting part 31 in a major axial direction (an x direction inFIG. 3A ) is provided with oneguide projection 32. These guideprojections 32 are referred to asguide projections 32 x. The other fourprojections 32 are each provided to a boundary between a large curvature portion and a small curvature portion of theseal supporting part 31. These guideprojections 32 are referred to asguide projections 32 y. - The
guide projections 32 x engage with an inner peripheral surface of the sealingwall 6 when themale connector 20 is inserted into theconnector placement window 5 of thecase cover 4, thereby regulating relative positions of themale connector 20 and the case cover 4 (the sealing wall 6) in a major axial direction. Similarly, theguide projections 32 y engage with the inner peripheral surface of the sealingwall 6, thereby regulating relative positions of themale connector 20 and the case cover 4 (the sealing wall 6) in a minor axial direction (a y direction inFIG. 3A ). - The
seal holder 36 is provided on a front side of the seal supporting part 31 (the sealing member 35) of thebase 23. When the sealingmember 35 fits in theseal placing part 30, theseal holder 36 supports the sealingmember 35 from the front side to prevent misalignment of the sealingmember 35 to the front side. Theseal holder 36 is fabricated separately from themale connector 20, and is provided at a predetermined position after the sealingmember 35 is placed on the periphery of theseal supporting part 31. - The
seal holder 36 has an outer peripheral surface on which six guide projections 37 (second guide portions) are formed so as to be spaced apart from each other in a circumferential direction. Theguide projections 37 of theseal holder 36 are also provided at positions similar to those of theguide projections 32 of theseal supporting part 31. That is, each of both ends of theseal holder 36 in a major axial direction is provided with oneguide projection 37. These guideprojections 37 are referred to asguide projections 37 x. The other fourprojections 37 are each provided to a boundary between a large curvature portion and a small curvature portion of theseal supporting part 31. These guide projections are referred to asguide projections 37 y. - The
guide projections 37 x engage with an inner peripheral surface of the sealingwall 6 when themale connector 20 is inserted into theconnector placement window 5 of thecase cover 4, thereby regulating relative positions of themale connector 20 and the case cover 4 (the sealing wall 6) in a major axial direction. Similarly, theguide projections 37 y engage with the inner peripheral surface of the sealingwall 6, thereby regulating relative positions of themale connector 20 and the case cover 4 (the sealing wall 6) in a minor axial direction. - The guide projections 37 (37 x and 37 y) are provided at the same positions as those of the corresponding guide projections 32 (32 x and 32 y) in the circumferential direction. In this manner, with the
guide projections 32 and theguide projections 37 provided on both sides in a front-and-rear direction (a vertical direction in the drawings) across the sealingmember 35 so as to be spaced apart from each other, relative positions of themale connector 20 and the case cover 4 (the sealing wall 6) in the front-and-rear direction (a z direction inFIG. 3A ) are regulated when themale connector 20 is inserted into theconnector placement window 5 of thecase cover 4. Note that while an example provided herein shows that thecorresponding guide projections projections - Next, each receiving
part 24 includes a holdingwall 25 having holdingholes 26 penetrating through the front and rear formed therein and ahood 27 standing from a circumferential edge of the holdingwall 25 toward front. Thecontacts 22 are held by the holdingwall 25 by being pressed into the holding holes 26, and each of thecontacts 22 has a side on a front side of the holdingwall 25 accommodated in thehood 27 and a side on a rear side of the holdingwall 25 accommodated inside thecase cover 4. - As shown in
FIG. 2B , the holdingwall 25 has a projectingpart 28 projecting rearward. In this projectingpart 28, ascrew hole 29 opening rearward is formed. Themale connector 20 is fixed via each fixingseat 38 to thecase 3 with a bolt (omitted in the drawings), and is assembled to theelectronic device 1 with a bolt B penetrating through thecircuit board 2 being screwed into thescrew hole 29 of the projectingpart 28. - When the
male connector 20 is assembled to theelectronic device 1, the tip of the sealingmember 35 of themale connector 20 is brought into intimate contact with the inner peripheral surface (a sealing surface) of the sealingwall 6 of thecase cover 4 to seal a space between thecase cover 4 and themale connector 20, thereby ensuring a waterproof property inside thecase cover 4. - In the present embodiment, a dimension (the height) of the sealing
member 35 in the front-and-rear direction is set to be smaller than the height of the sealingwall 6. This is to more reliably accommodate the sealingmember 35 between the base 23 of themale connector 20 and the sealingwall 6 even if a misalignment of thecase cover 4 in the front-and-rear (fitting) direction occurs. However, this is merely a preferable embodiment of the present invention. - [Female Connector 40] Next, the
female connector 40 to be mated with themale connector 20 includes, as shown inFIG. 1 andFIGS. 2A to 2C , afemale housing 41 corresponding to the receivingparts 24 of themale connector 20,female contacts 42 held by thefemale housing 41 to be electrically connected to thecontacts 22 of themale connector 20, aretainer 43 for cushioning a force at the time of insertion and removal of the connector, andlever engaging parts 44 provided on the periphery of thefemale housing 41 to prevent disconnection between themale connector 20 and thefemale connector 40 mated with each other. - The
female housing 41 hascontact cavities 45 into which thecontacts 22 of themale connector 20 are inserted. Into thecontact cavities 45, electric wires not shown connected to thecontacts 42 are inserted. - When the
female connector 40 and themale connector 20 are connected together, thefemale housing 41 is accommodated in theaccommodating parts 24. A holdinggroove 47 is provided to an entire outer periphery of thefemale housing 41 on a rear end. In this holdinggroove 47, the ring-shaped sealingmember 46 is placed. - When the
female connector 40 and themale connector 20 are mated with each other, the sealingmember 46 is brought into intimate contact with an inner peripheral surface of thehood 27 to seal a space between themale connector 20 and thefemale connector 40. With such configuration, water can be prevented from entering from the space between themale connector 20 and thefemale connector 40. - Also, on the outer periphery of the
female housing 41, unshown rotating shafts 44 a of thelever engaging parts 44 are formed. - Each of the
lever engaging parts 44 is rotated with asupport shaft 48 formed on the outer periphery of thefemale housing 41 as an axis, and includes an engagingprojection 49 engaging with an engagingprojection 39 formed on an outer periphery of thehood 27. According to this configuration, themale connector 20 and thefemale connector 40 are prevented from being removed from each other. - The
female housing 41 includes askirt 50. Theskirt 50 is provided on a front end side of thefemale housing 41, and has an accommodation space 51 (refer toFIGS. 2B and 2C ) therein for accommodating a front end side of themale connector 20. When thefemale connector 40 is mated with themale connector 20, thebase 23 of themale connector 20 is accommodated in theaccommodation space 51 of theskirt 50. That is, theskirt 50 covers theseal holder 36, the sealing member 35 (the seal placing part 30), and therubber supporting part 31. Theskirt 50 also covers the sealingwall 6 of thecase cover 4 configuring the sealing part together with the sealingmember 35. - To achieve the function described above, the
accommodation space 51 of theskirt 50 has a width set to be larger than the outer shape of the sealingwall 6. However, if a space between the sealingwall 6 and theskirt 50 is too large, the possibility of entrance of water is increased. On the other hand, if this space is too small, theskirt 50 interferes with the sealingwall 6 due to the dimensional tolerance to possibly cause a trouble in mating thefemale connector 40 with themale connector 20. In consideration of these points, the dimension of the width of theskirt 50 can be set. Also, a dimension (a height) of theskirt 50 in a front-and-rear direction is preferably set so that a space is formed between a front end of thefemale connector 40 and thecase cover 4 when thefemale connector 40 is mated with themale connector 20. This is to secure complete mating between thefemale connector 40 and themale connector 20 by avoiding interference of the front end of thefitting skirt 50 with thecase cover 4. As a matter of course, the height of this space, that is, the height of theskirt 50, should be determined in consideration of reduction in the possibility of entrance of water and misalignment of the connector. - The procedure of assembling the
male connector 20 to theelectronic device 1 is described below with reference toFIGS. 5A , 5B, 6A, and 6B. - First, as shown in
FIG. 5A , themale connector 20 is assembled to thecase 3 and thecircuit board 2. - This assembling is performed as described above by fixing the
male connector 20 to thecase 3 with bolts (not shown) via the fixingseats 38 and screwing the bolt B penetrating through thecircuit board 2 into thescrew hole 29 of the projectingpart 28. - Next, as shown in
FIG. 5B , thecase cover 4 is placed. - While the
male connector 20 is being positioned relative to theconnector placement window 5 of thecase cover 4, thecase cover 4 is pressed toward thecircuit board 2 to cause themale connector 20 to be inserted into theconnector placement window 5. During this course, thefirst guide projections 32 and thesecond guide projections 37 help ensure an appropriate intimate contact state of the sealingmember 35 of themale connector 20 between these guide projections and the sealingwall 6 of thecase cover 4. - That is, when the sealing
wall 6 reaches theseal holder 36, theguide projections 32 interfere with the inner periphery surface of the sealingwall 6. Thus, thecase cover 4 is not misaligned with respect to themale connector 20 as theguide projections 32 go beyond interference with the sealingwall 6. For example, even if thecase cover 4 is inserted into themale connector 20 as being tilted, as shown inFIG. 4B , the guide projections 37 (32) engage with the inner peripheral surface of the sealingwall 6, thereby allowing themale connector 20 to be inserted into theconnector placement window 5 while regulating a further tilt of thecase cover 4. Therefore, as shown inFIG. 6A , when thecase cover 4 is pressed to reach the sealingmember 35, the sealingmember 35 is brought into intimate contact with the inner peripheral surface of the sealingwall 6 over an entire area in a circumferential direction so as to obtain an intimate contact width necessary for ensuring a waterproof property. - When the
case cover 4 is further pressed, as shown inFIG. 63 , the sealingwall 6 passes the sealingmember 35 to reach theseal supporting part 31. As a result, theguide projections 32 provided on the periphery of theseal supporting part 31 engage with the inner peripheral surface of the sealingwall 6, thereby regulating the tilt of thecase cover 4 in a manner similar to that described above. With the provision of theguide projections member 35 in a front-and-rear direction, this tilt of thecase cover 4 is regulated not only in a planar direction (in an x direction and a y direction inFIG. 3A ) but also in the front-and-rear direction (a z direction inFIG. 3A ). In this manner, only by pressing thecase cover 4 to the bottom, the necessary intimate contact width necessary for ensuring a waterproof property is provided to the sealingmember 35. According to such configuration as described above, theconnector assembly 10 of the present embodiment can provide a high waterproof property between thecase cover 4 and themale connector 20. - If the
guide projections case cover 4 is pressed to the bottom as thecase cover 4 keeps being significantly tilted in the planar direction and the front-and-rear direction. Then, a partial contact occurs in which a portion with a too large intimate contact width and a portion with a too small intimate contact width are present in a mixed manner in the sealingmember 35. The portion with a too small intimate contact width has an insufficient waterproof property. In the portion with a too large intimate contact width, if the sealingmember 35 and the sealingwall 6 too strongly interfere with each other, the sealingmember 35 can be twisted or removed from theseal supporting part 31. This also does harm to the waterproof property. - After the
case cover 4 is pressed to the bottom, thefemale connector 40 is caused to be mated with themale connector 20. As a result, as shown inFIG. 1 , themale connector 20 is covered with thefemale connector 40. In particular, a portion sealed with the sealingmember 35 and the sealingwall 6 is completely covered inside theskirt 50 of thefemale connector 40, thereby preventing water from directly coming from the outside to the sealed portion. Also, the factor responsible for damage to the waterproof property is not directly provided from the outside to the sealingmember 35, thereby further improving the waterproof property of the sealed portion. - In the
connector assembly 10 described above, the provision of theguide projections seal support part 31 and theseal holder 36, respectively, is suitable for guiding so that the center of thecase cover 4 and the center of themale connector 20 match each other. However, the present invention allows theguide projections member 35 be uniform in the planar direction and the front-and-rear direction. Also, a length (a dimension in the planar direction) of each of theguide projections - Furthermore, the example has been described in the above embodiment in which the sealing
member 35 includes two ribs 35 a. This is because, even when a trouble such as a twist occurs in one rib 35 a, the waterproof property can be ensured if the other rib 35 a remains intact. Therefore, the sealingmember 35 including a plurality of the ribs 35 a is preferable. - As a matter of course, a sealing member for use in the present invention is not restricted to the one including ribs. For example, a rib sealing member or a grommet sealing member can be used.
- The waterproof connector of the present invention includes the guide portions on both sides across the sealing member, the guide portion guiding the housing to a position relative to the connector placement window. In accordance with such configuration, when the housing is inserted into the connector placement window, an appropriate intimate contact state can be provided to the sealing member without performing an extra operation. Therefore, the waterproof property in the sealing part can be stably ensured.
- In the waterproof connector of the present invention, the guide portions can include a first guide portion provided on one of the sides across the sealing member and a second guide portion provided on another one of the sides across the sealing member. Here, both of the first guide portion and the second guide portion can be formed integrally with the housing. Alternatively, the first guide portion can be formed integrally with the housing, and the second guide portion can be formed on a ring-shaped seal fixing member fixing the sealing member to the housing.
- In the waterproof connector of the present invention, a dimension of the sealing member in a mating direction of mating with the counterpart connector is preferably smaller than a dimension of the sealing wall in the mating direction. Even if the case cover is placed in the mating direction with misalignment, the sealing member can be brought into intimate contact with the sealing wall.
- In the waterproof connector of the present invention, the sealing member preferably includes a plurality of ribs projecting toward the sealing wall. This is because, even when a trouble such as a twist occurs in one rib, the waterproof property can be ensured if another rib remains intact.
- In the waterproof connector of the present invention, the plurality of guide portions are preferably placed so as to be spaced apart from each other in a circumferential direction of the housing.
- By freely adjusting the positions where the plurality of guide portions are to be provided, the housing can be guided to a more appropriate position of the seating wall.
- In the waterproof connector of the present invention, to improve the waterproof property, the counterpart connector preferably includes a skirt, and when the counterpart connector is connected to the waterproof connector, the sealing part is covered with the skirt.
- Furthermore, the present invention provides a mounting structure of a waterproof connector to be connected to a circuit board placed in a case and assembled to the case, the waterproof connector being any of the waterproof connectors described above and the case cover configuring a part of the case.
- According to the mounting structure of the waterproof connector of the present invention, an appropriate intimate contact state can be provided to the sealing member, thereby allowing an excellent waterproof property to be ensured inside the case.
- Still further, an embodiment of the present invention may provide a waterproof connector mounting method including the steps of connecting any of the waterproof connector described above to the circuit board and mounting the case cover including the sealing wall rising from the periphery of the connector placement window on the waterproof connector connected to the circuit board so that the waterproof connector is placed on the connector placement window.
- According to the waterproof connector mounting method of the present invention, only by assembling the case cover via the connector placement window to the case having the waterproof connector and the circuit board being fixed therein, an appropriate intimate contact state can be obtained in the sealing member, and therefore the mounting operation is easy.
- While the present invention has been described based on the embodiments, the structures described in the embodiments above can be selectively adopted or omitted or can be changed to another structure without deviating from the gist of the present invention.
Claims (9)
1. A waterproof connector comprising:
a housing that holds at least one contact for establishing an electrical connection with a mating connector; and
a ring-shaped sealing member mounted on the housing, the sealing member having a front face and a rear face;
at least a first and a second guide portion provided adjacent to each of both faces of the sealing member, the guide portions guiding the housing when being mounted to a case.
2. The waterproof connector according to claim 1 , wherein
the first guide portion is integrally formed on the housing,
3. The waterproof connector according to claim 1 , wherein
the second guide portion is formed on a ring-shaped seal fixing member fixing the sealing member to the housing.
4. The waterproof connector according to claim 1 , wherein
the sealing has a thickness extending from the front face to the rear face, wherein the connector is mounted to a sealing wall projecting from said cover, and wherein the thickness is smaller than a height of said sealing wall.
5. The waterproof connector according to claim 1 , wherein
the sealing member includes at least one rib projecting from an outer peripheral surface thereof.
6. The waterproof connector according to claim 1 , wherein
a plurality of first and second guide portions are placed so as to be spaced apart from each other in a circumferential direction of the housing.
7. A waterproof connector assembly, comprising:
a connector having
a housing that holds at least one contact for establishing an electrical connection with a mating connector; and
a ring-shaped sealing member mounted on the housing, the sealing member having a front face and a rear face;
at least a first and a second guide portion provided adjacent to each of both faces of the sealing member, the guide portions guiding the housing when being mounted to a case;
the mating connector, said mating connector including a skirt for covering the sealing part in a mated state of the connector and the mating connector.
8. A waterproof mounting structure comprising:
an electrical connector having
a housing that holds at least one contact for establishing an electrical connection with a mating connector; and
a ring-shaped sealing member mounted on the housing, the sealing member having a front face and a rear face;
at least a first and a second guide portion provided adjacent to each of both faces of the sealing member, the guide portions guiding the housing when being mounted to a case;
a case cover, configuring a part of said case and comprising a connector placement window including a sealing wall rising from a periphery of the connector placement window, wherein the guide portions engage with the sealing wall when the housing is inserted into the connector placement window, and
wherein said electrical connector is to be connected to a circuit board placed in said case and assembled to the case.
9. An assembly method of mounting a waterproof connector, said method comprising the steps of
providing a waterproof connector, said connector comprising:
a housing that holds at least one contact for establishing an electrical connection with a mating connector; and
a ring-shaped sealing member mounted on the housing, the sealing member having a front face and a rear face;
at least a first and a second guide portion provided adjacent to each of both faces of the sealing member, the guide portions guiding the housing when being mounted to a case;
connecting the waterproof connector to a circuit board; and
mounting the case cover on the waterproof connector connected to the circuit board so that the waterproof connector is placed within the connector placement window.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011258530A JP2013114830A (en) | 2011-11-28 | 2011-11-28 | Waterproof connector, and packaging structure and packaging method of waterproof connector |
JP2011-258530 | 2011-11-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
US20130171854A1 true US20130171854A1 (en) | 2013-07-04 |
Family
ID=47351452
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/683,441 Abandoned US20130171854A1 (en) | 2011-11-28 | 2012-11-21 | Waterproof Connector and Waterproof Connector Mounting Structure and Mounting Method |
Country Status (4)
Country | Link |
---|---|
US (1) | US20130171854A1 (en) |
EP (1) | EP2597730A1 (en) |
JP (1) | JP2013114830A (en) |
CN (1) | CN103138102A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014118392A1 (en) * | 2014-12-11 | 2016-06-16 | HARTING Electronics GmbH | Wall bushing for connectors |
US9825398B1 (en) * | 2016-05-17 | 2017-11-21 | J.S.T. Mfg. Co., Ltd. | Waterproof connector |
US10630021B2 (en) * | 2018-05-09 | 2020-04-21 | J.S.T. Mfg. Co., Ltd. | Waterproof connector and waterproof structure of device case |
CN113517619A (en) * | 2016-08-08 | 2021-10-19 | 泰连公司 | Receptacle connector with contact assembly |
US11165189B2 (en) * | 2017-10-19 | 2021-11-02 | Mitsubishi Electric Corporation | Waterproof connector and method of assembling same |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102012203222A1 (en) * | 2012-03-01 | 2013-09-05 | Robert Bosch Gmbh | Housing part for driving unit for actuating moving parts of car, has groove for receiving radial joint, which radially ensures sealing of part, where wall of groove comprises projections that carry out interlocking connection with joint |
DE102013209367A1 (en) * | 2013-05-21 | 2014-11-27 | Continental Automotive Gmbh | Contact device for establishing an electrical contact between a printed circuit board and an electric motor |
KR102226323B1 (en) * | 2014-06-25 | 2021-03-11 | 타이코에이엠피 주식회사 | Header assembly and connector device for vehicle having the header assembly |
JP2017050229A (en) * | 2015-09-04 | 2017-03-09 | トヨタ自動車株式会社 | Connector structure |
JP2023173480A (en) * | 2022-05-26 | 2023-12-07 | 三菱電機株式会社 | Wiring structure for electric apparatus |
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US9825398B1 (en) * | 2016-05-17 | 2017-11-21 | J.S.T. Mfg. Co., Ltd. | Waterproof connector |
CN113517619A (en) * | 2016-08-08 | 2021-10-19 | 泰连公司 | Receptacle connector with contact assembly |
US11165189B2 (en) * | 2017-10-19 | 2021-11-02 | Mitsubishi Electric Corporation | Waterproof connector and method of assembling same |
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Also Published As
Publication number | Publication date |
---|---|
CN103138102A (en) | 2013-06-05 |
JP2013114830A (en) | 2013-06-10 |
EP2597730A1 (en) | 2013-05-29 |
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Legal Events
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AS | Assignment |
Owner name: TYCO ELECTRONICS JAPAN G.K., JAPAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:HOMME, HIDETAKA;REEL/FRAME:029361/0727 Effective date: 20120912 |
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |